FY2027
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Excludes1 pair

R10- vs R10.0

R10 and R10.0 are not coded together. ICD-10-CM declares them mutually exclusive with an Excludes1 note — the two conditions are not expected to occur together, so exactly one of them is normally correct for a given encounter. The Official Guidelines carve out one exception: if the two conditions are clearly unrelated to each other, both may be reported.

The official note, declared on R10.0
localized abdominal pain (R10.1-R10.3-)
R10

Abdominal and pelvic pain

Not billable
Chapter 18
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
Section
R10-R19
R10.0

Acute abdomen

Billable
Chapter 18
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
Section
R10-R19
Use when the record says
  • Severe abdominal pain (generalized) (with abdominal rigidity)
Indexed under
  • Abdomen, abdominal › acute
  • Acute › abdomen
  • Crisis › abdomen
  • Syndrome › acute abdominal
  • Pain › abdominal › severe with abdominal rigidity

Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027